<template>
  <el-dialog title="新增员工" :visible="showDialog" @click.native="isShow = false" @close="close">
    <!-- 表单 -->
    <el-form ref="addForm" :model="formData" :rules="rules" label-width="120px">
      <el-form-item label="姓名" prop="username">
        <el-input v-model="formData.username" style="width:70%" placeholder="请输入姓名" />
      </el-form-item>
      <el-form-item label="手机" prop="mobile">
        <el-input v-model="formData.mobile" style="width:70%" placeholder="请输入手机号" />
      </el-form-item>
      <el-form-item label="入职时间" prop="timeOfEntry">
        <el-date-picker v-model="formData.timeOfEntry" style="width:70%" placeholder="请选择入职时间" />
      </el-form-item>
      <el-form-item label="聘用形式" prop="formOfEmployment">
        <el-select v-model="formData.formOfEmployment" style="width:70%" placeholder="请选择">
          <!-- label是用于展示的 value是用于收集传递给后端的 -->
          <el-option v-for="item in Enum.hireType" :key="item.id" :label="item.value" :value="item.id" />
        </el-select>
      </el-form-item>
      <el-form-item label="工号" prop="workNumber">
        <el-input v-model="formData.workNumber" style="width:70%" placeholder="请输入工号" />
      </el-form-item>
      <el-form-item label="部门" prop="departmentName">
        <el-input
          :value="formData.departmentName"
          style="width:70%"
          placeholder="请选择部门"
          @click.native.stop="showDepts"
        />
        <!-- disabled readonly -->
        <!-- 部门列表 -->
        <div v-if="isShow" class="treebox">
          <el-tree
            :data="treeData"
            :props="{label: 'name'}"
            default-expand-all
            @node-click="handleClick"
          />
        </div>
      </el-form-item>
      <el-form-item label="转正时间" prop="correctionTime">
        <el-date-picker v-model="formData.correctionTime" style="width:70%" placeholder="请选择转正时间" />
      </el-form-item>
    </el-form>

    <!-- footer插槽 -->
    <template v-slot:footer>
      <el-button @click="close">取消</el-button>
      <el-button type="primary" @click="handleSubmit">确定</el-button>
    </template>
  </el-dialog>
</template>

<script>
import Enum from '@/constant/employees'
import { reqGetDepartments } from '@/api/departments'
import { tranlateToData } from '@/utils/index'
import { reqAddEmployee } from '@/api/employees'
export default {
  props: {
    showDialog: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {
      Enum, // 将常量数据挂载
      formData: {
        username: '', // 用户名
        mobile: '', // 手机号
        formOfEmployment: '', // 聘用形式
        workNumber: '', // 工号
        departmentName: '', // 部门
        timeOfEntry: '', // 入职时间
        correctionTime: '' // 转正时间
      },
      rules: {
        username: [
          { required: true, message: '用户姓名不能为空', trigger: ['blur', 'change'] },
          { min: 1, max: 4, message: '用户姓名为1-4位', trigger: ['blur', 'change'] }
        ],
        mobile: [
          { required: true, message: '手机号不能为空', trigger: ['blur', 'change'] },
          { pattern: /^1[3-9]\d{9}$/, message: '手机号格式不正确', trigger: ['blur', 'change'] }
        ],
        formOfEmployment: [
          { required: true, message: '聘用形式不能为空', trigger: ['blur', 'change'] }
        ],
        workNumber: [
          { required: true, message: '工号不能为空', trigger: ['blur', 'change'] }
        ],
        departmentName: [
          { required: true, message: '部门不能为空', trigger: ['blur', 'change'] }
        ],
        timeOfEntry: [
          { required: true, message: '请选择入职时间', trigger: ['blur', 'change'] }
        ]
      },
      // 部门列表数据
      treeData: [],
      isShow: false
    }
  },
  methods: {
    // 获取部门列表
    async showDepts() {
      // 点击一次显示再点击一次隐藏
      this.isShow = !this.isShow
      // 只获取一次部门列表(部门数据不是频繁变化)
      /* if (!this.treeData.length) {
        const { data: { depts }} = await reqGetDepartments()
        this.treeData = tranlateToData(depts, '')
      } */
      // 只要点击显示就重新获取部门列表
      if (this.isShow) {
        const { data: { depts }} = await reqGetDepartments()
        this.treeData = tranlateToData(depts, '')
      }
    },
    // 树形节点被点击的处理函数
    handleClick(data) {
      // console.log(data) // 点击的部门信息对象
      // 点击的部门没有子部门才可以被选中
      if (data.children.length !== 0) return this.$message.warning('请选择没有子部门的部门')
      this.formData.departmentName = data.name
      // 选中完毕后关闭部门列表
      this.isShow = false
    },
    // 关闭对话框的方法
    close() {
      // 1. 关闭对话框
      this.$emit('update:showDialog', false)
      // 2. 重置表单
      this.$refs.addForm.resetFields()
    },
    // 新增员工
    handleSubmit() {
      //  1.预校验
      this.$refs.addForm.validate(async boo => {
        if (boo) {
          // 2. 发送请求
          await reqAddEmployee(this.formData)
          // 3. 关闭对话框 重置表单
          this.close()
          // 4. 通知父组件重新渲染
          this.$emit('reload')
        }
      })
    }
  }
}
</script>

<style lang="scss" scoped>
.treebox{
  position: absolute;
  left: 0;
  top: 40px;
  z-index: 999;
  width: 70%;
  border: 1px solid #ccc;
  border-radius: 5px;
  overflow: hidden;
}
</style>
